Plug it on!... with railties

Plug it on!... with Railties

Edgar J. Suárez ['twitter.com','github.com', 'rails.mx'].each do |host| link_to "#{host}/edgarjs" end mail_to "edgar.js@gmail.com"

Rail-tie Rail (HDR) @ sadi-junior / ﬂickr.com

.init! Endeavour launch @ msimdottv / ﬂickr.com

rails server

script/server require ‘conﬁg/application’ require ‘conﬁg/boot’

conﬁg/boot.rb Bundler.setup

conﬁg/application.rb require ‘rails/all’

rails/all.rb require ‘rails’

rails.rb require ‘pathname’ require ‘active_support’ ... require ‘rails/application’ ...

rails/application.rb require ‘rails/railties_path’ require ‘rails/plugin’ require ‘rails/engine’

rails/engine.rb require ‘rails/railtie’

rails/railtie.rb require ‘rails/initializable’ require ‘rails/conﬁguration’

rails/conﬁguration.rb require ‘rails/paths’ require ‘rails/rack’

rails/all.rb require 'rails' %w( active_record action_controller action_mailer active_resource rails/test_unit ).each do |framework| begin require "#{framework}/railtie" rescue LoadError end end

rails new your_app -O conﬁg/application.rb require 'rails/all'

rails new your_app -O conﬁg/application.rb require 'rails' # require 'active_record/railtie' require 'action_controller/railtie' require 'action_mailer/railtie' require 'active_resource/railtie' require 'rails/test_unit/railtie'

Modular origami : the collection so far @ fdecomite / ﬂickr.com

Lego Trains @ psd / ﬂickr.com

Railtie + Engine + Application + Plugin = MODULAR RAILS

Railtie

Railtie Initializers Conﬁguration Rake tasks Generators

Initializers initializer "my_railtie.initialize" do |app| app.middleware.use MyRailtie::Middleware end

Conﬁguration config.generators.orm :my_railtie_orm # Add a to_prepare block which is executed once in production # and before which request in development config.to_prepare do MyRailtie.setup! end

Rake tasks rake_tasks do load "path/to/my_railtie.tasks" end

Generators generators do require "path/to/my_railtie_generator" end

Engine < Railtie Initializers Conﬁguration Paths Rake tasks Generators

Paths paths.app = "app" paths.app.controllers = "app/controllers" paths.app.helpers = "app/helpers" paths.app.models = "app/models" paths.app.views = "app/views" paths.lib = "lib" paths.lib.tasks = "lib/tasks" paths.config = "config" paths.config.initializers = "config/initializers" paths.config.locales = "config/locales" paths.config.routes = "config/routes.rb"

Application < Engine Initializers Conﬁguration Holds routes Rake tasks Builds middleware stack Generators Paths

conﬁg/application.rb module YourRailsApp class Application < Rails::Application end end

Plugin < Engine

Plugin To be continued... It's so damn Sexy @ picsaremine / ﬂickr.com

.init! Endeavour launch @ msimdottv / ﬂickr.com

conﬁg/environment.rb YourApp::Application.initialize!

YourApp::Application.initialize! initializers.each do |initializer| initializer.run(*args) end def initializers railties.all { |r| initializers += r.initializers } end def all(&block) @all ||= railties + engines + plugins @all.each(&block) if block @all end

railties + engines + plugins def railties @railties ||= ::Rails::Railtie.subclasses.map(&:new) end def engines @engines ||= ::Rails::Engine.subclasses.map(&:new) end def plugins @plugins ||= begin plugin_names = (@config.plugins || [:all]).map { |p| p.to_sym } Plugin.all(plugin_names, @config.paths.vendor.plugins) end end

Plugin.all def self.all(list, paths) plugins = [] paths.each do |path| Dir["#{path}/*"].each do |plugin_path| plugin = new(plugin_path) next unless list.include?(plugin.name) || list.include?(:all) plugins << plugin end end plugins.sort_by do |p| [list.index(p.name) || list.index(:all), p.name.to_s] end end

Plugin.new def initialize(root) @name = File.basename(root).to_sym config.root = root end initializer :load_init_rb, :before => :load_application_initializers do |app| file = Dir["#{root}/{rails/init,init}.rb"].first config = app.config eval(File.read(file), binding, file) if file && File.file?(file) end

How to make your Railtie

# railtie_name/lib/railtie_name/railtie.rb require 'rails' module RailtieName class Railtie < Rails::Railtie config.some_config = true initializer "railtie_name.initializating" do |app| # your initialization here end end end

require 'railtie_name/railtie'

Thanks! http://twitter.com/edgarjs http://github.com/edgarjs http://rails.mx/edgarjs http://freshout.us edgar.js@gmail.com

Plug it on!... with railties

by rails.mx on Oct 20, 2010

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Plug it on!... with railties — Presentation Transcript